Where to best upgrade - TT, arm or phono stage?


I have a decent analog source (Roksan Radius 5 table >> Soundsmith re-tipped Clearaudio Virtuoso Wood >> NIMA arm w/Incognito wiring >> Bottlehead Seduction w/CS4). The cartridge is a keeper and I must stick to the "MM" paradigm.

I am considering the new Bottlehead Eros phono stage, which I can afford by selling the Seduction and a few odds and sods.

Generally speaking from your experience, at my level of analog gear which upgrade would yield the best bang for the buck:

Table (this seems the most costly to upgrade, but many of you have more knowledge here);

Arm (a Roksan Tabriz ZI is the only true "drop-in" I know of for my table and a used one is available for $750);

Phono Stage (the Eros costs $500 more than the Seduction);
jb0194
Almost all my lps are 30-50 years old and most have taken some hard use during my college years. I've only very recently assembled the vinyl source gear, and my goal is to enjoy spinning the lp collection I now have. I did buy a VPI record cleaning machine and record/stylus brushes.

In this context, I'll likely not upgrade beyond the Eros phono stage as I have a good supply of all the tubes it requires and its older and less costly sibling has really impressed me.

I want my revisitation of vinyl to be fun, and least labor intensive. One thing I already miss is the convenience of the vintage automatic/semi-auto tables of my youth - sonic penalty accepted (within reason). I have a refurbished Dual CS-704 on the way from Germany and may upgrade its wiring and use it with the retipped Virtuoso in place of the Roksan if its sound is acceptable. Again, mine is not the pursuit of s.o.t.a., and a well cared-for, reasonable quality vintage semi-automatic table mated to a very good and compatible cartridge may appeal to the nostalgic in me - especially spinning used lps and feeding a better phono stage that doesn't far outclass it.
I have a Tabriz Zi and would recommend it highly. Are you sure it's the only drop in replacement though? It's Rega geometry and any Rega, Clearaudio, and other arms with Rega Geometry should fit.
I don't know if arms other than the Tabriz will drop in. It'd be nice to expand choices that don't require major surgery.

I appreciate the feedback on the Tabriz ZI!
The best upgrade is the MintLP .. than you can buy or change everything else :-)